| 摘要 |
A device for determining the thermal exchange coefficient between a fluid and a wall at a point PN of a surface of the wall in contact with the fluid, including a measuring device (DT) which measures at least two temperature values TC1 and TC2 of the wall and a temperature value TF of the fluid, and a computer for calculating, from the temperature values TC1 and TC2, a temperature value Tp of the wall and a thermal flow Phi given by the following equation: Phi=-lambdagrad (TC1-TC2), where lambda is the thermal conductivity of the wall, and for calculating, from the fluid temperature TF, the average temperature TP and the thermal flow phi the thermal exchange coefficient h in the following form: h=Phi/(TF-TP).
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